Home / 20,396.16-28,146.78-11,444.04

Finding the Fourth Proportional to 20,396.16, 28,146.78 and 11,444.04

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Solution

The fourth proportional to 20,396.16, 28,146.78 and 11,444.04 is: 15,792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.16 : 28,146.78 = 11,444.04 : x
  2. Step 2: Convert to fraction form
    20,396.16/28,146.78 = 11,444.04/x
  3. Step 3: Cross multiply
    20,396.16x = 28,146.78 × 11,444.04
  4. Step 4: Simplify right side
    20,396.16x = 322,112,876.19
  5. Step 5: Solve for x
    x = 322,112,876.19/20,396.16
  6. Step 6: Final answer
    x = 15,792.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.